Log-sawing device.



*NETE STAT FAENT Fldiiffi i: SABEN, f OF TAVEBA, WISCONSIN.

Specification of VLetters Patent.

Patented Feb., 12, 1918.

Appneaticnniedsprn14, 1917. sei-iai no. leales.

To all `whom it' may` concern Be it vfknovvn 'that FI, "-WARREN SABI'N, -a citizen -of 'the United States, residing fat Tavera, in 'thefcounty oflichlandfand State of Visc0nsin,have invented certain'inevv-and `useful Improvements fin Log-Szwving iiDevices, of VWhich the following isa specification. K

This invention has relation-to sawing machines, and has foran object to providefalog sawing machine whereby afloglmay'be savved Vlongitudinally and transversely Withrmeans operable by a single lever for moving the log in `the'manner *stated vvhereby it mavbe fed to the vsavv fordivision'in'themanner set forth.

vvIn addition to the "foregoing my `inven-` tion comprehends improvements Vin :the de 4 tails of construction and arrangement of y parts `to behereinafterLmoretlflly described and iparticularly set `forth in the appended claims.

'In the Yaccompanyingxdravvings in lWhich similar `and corresponding `parts are desi gnated by the same ycharacters of reference throughout ithe several vieWsin which they appear Figure 1, isa view in `plan illustrating a logsavving machine constructediafter the `mannerxof Imy invention.

'Fig-12, is va view ofthe machine in side elevation, and

Fig. v3, is 4a detail section taken on the 'With reference :to th drawings 1110 in'die vCates a pair of rails mountedjupon stringere "11 which are parallel and spacedfand connected `together at their ends through Pthe medium of conneetingibarslQ vv'lierebythe gage between 'itlie :rails 1"0 may be maintained.

A truck indicated hat 13anfd which may be of any desired Lframe construction is mounted upon rollers "14 designed 'for roll-V ing` Contact with the rails AVl() Wherebv the truck may be moved from one end :ofthe stringers to the other. To this end a shaft 15 is extended across one end of the stringers in contiguous relation to one of the coned upon the'ltruclrl necting bars 12, the slia'ftbeing journaled at either end 1n bearings 16 mounted npen fthe stringere. A lever li? ispivotally mounted asat `18 toa sleeve 19 which is keyed or otherwise secured 1tothe shaft '15 `Whereby 'the-lever may beoscillated 1n one ,direc- Ation to rotate the shaft'and 4in a "direction atright anglesto said direction-of oscillationnpon its pivot 118 for-a purpose which `willloe presently noted. A linlr 20 connects an 'intermediateportion of said "lever with the truck, andan Yarmi 21 isliixedly Asecured rat one end to the shaft and at its'opposite end'through the medium ofthe llink `22 to "theitruck at 'the end thereof `remote from the end 'to which the link Q0 v-is connected whereby L'by oscillating said lever -1'7 the truck may be moved along its rails in `a positive and uniform manner.

Theitruck 13 is designed to support a log feeding means which includes a pair ofrails 23 which Vare mountedupon `the uppersurface ofthetruck in yspaced relation'and eX- tendedfin a. direction at right angles to the rails 10 mentioned above. A carriage 24 is mounted upon the rails 23 for sliding .movement thereon and is formed With an upper concaved portion in which to receive "therear end of thelog. Mounted upon the Vtruck 13 atthe end thereof adjacent the "lever "17 is alog feeding roller 25 ivliichis .smallest in diameter ata point intermediate the ends 4thereof conveying the impression 'of a pair of cones having their apicesvjoined.

A shaft 26 penetrates the roller and the shaft is journale'dupon *bearings 27, mount- An endless fiexible elementQS is Wrapped, several times around the roller 25 atzthe intermediateportion thereof and one ofthestretchesof 'the fiexible .ele-

fment'ispassed around a pulleyQS an'dconnecte'd tothecarriage 24 as indicatedatfQQ.

The shaft Q6 virs-extended beyond one 'of 'thebearings, and preferably toward the Vlever h1"? and is jonrna'led in an additional 'bearing 130, the extremity of the shaft 'beyond :the bearing .being provided with a `bevel gear 3 1 which isjdesigned for intermittent engagement Withfopposed'bevel gears "'32 and 33 connected Vfor sliding movement in unison through the medium of a sleeve '34 through which `a shaft V,35 extends. `yThe shaftis mounted upon bearings 36 ivhich find support upon one of the stringers, and a coil spring operating by expansion and indicated at 37 is embraced about the shaft Vzo and interposed between the gear 32 and the bearings 36, whereby to normally retain said gear 32 in meshing engagement with the above mentioned gear 31. An arm 38 is pivotally connected as at 39 to the lever 17, extends laterally therefrom and has its terminal bent at right angles as indicated at 39 and bifurcated to straddle a collar formed on the gear 33 which collar is formed with a circumferential groove to receive the members of the bifurcation.

A shaft 40 is journaled at opposite ends upon bearings 41 which may be mounted upon any stationary support, the shaft preferably extending parallel to one of the rails 10 in contiguous relation thereto and having a. bevel gear 42 secured to one end for Vnormal meshing engagement with the bevel gear 43 provided upon the shaft 35. The opposite end of the shaft 40 is also provided with a bevel gear 41 which normally meshes with a corresponding' gear 45'secured to the one end of a shaft 46 which extends at right angles to said shaft 41 and is mounted at either end in bearings 47. The shaft 46 also carries a belt pulley 48 around which a belt 49 passes, said belt also passing around a pulley 50 mounted upon the saw shaft 51. A conventional type of circular saw 52 is secured to the saw shaft 51 and is disposed adjacent the end of the truck 13, or in a position to permit the truck to bel moved Y diametrically across the face of the saw.

In operation a log is supported at one end upon the carriage 24 and at its opposite end upon the roller 25 with the log projecting therebeyond so that the lever 17 may be oscillated to rotate the shaft 15 to shift the truck 13 whereby to move the end of the log into engagement with the saw thereby severing a section therefrom. The opposed bevel gears 32 and 33 are sufficiently spaced to permit disengagement of both with the intermediate gear 31 whereby the roller 25 may be stationary during the sawingl operation. However, after a section of the log has been removed and the truck 13 is moved to its original position by oscillating the lever 17 in a counter direction, said lever 17 is shifted to bring the gear 32 into meshing engagement with the gear 31 whereupon the roller 25 is rotated. Said roller receives its power primarily from the saw shaft 51, the rotation thereof being transmitted through the agency of pulleys 50 and 48, Vand the belt 49 to the shaft 46. Rotation of the shaft 46 is transmitted through the medium `of gears 44-and 45, shaft 40, and gears 42 and 43 to the shaft 35 which carries the aforesaid gear 32. Y

*gear 33 into engagement with the gear 31,

such movement disconnecting the gears 31 and 32, whereuponV the roller 25 will be rotated in a direction the reverse from that it;

takes when feeding, and as a consequence the carriage 24 will obviously be returned to Vits former position at the end of the truck 13 opposite that roller. A Y Y Having thus described my invention what I claim as new and desire to secure by Letters Patent is Y 1. In a log sawing machine, a frame, a

end which supports the constantly rotating bar, a truck movably mounted on the frame, gearing operable means on the truck for feeding a log, stationarily mounted gearing on the frame in the path of movement of the truck gearing, and means for moving the truck in one direction to engage the log against Vthe saw,

and for movingthe truck in a reverse direction to briner the gearing of the trucs into engagement with the frame gearing where- Y by to operate the logfeeding mechanism.

2. In a logsawing machme,a frame, a

`truck movably mounted thereon, a saw, a

carriage movably mounted on` the truck, a

shaft journaled on the truck, a iexibleconnection between the shaft and the carriage whereby to move the carriage in opposite directions, and upon a like rotation of the shaft, a gearcarried by said shaft. a pair of shiftable gears mounted von the frame for constant rotation,.inthe path of movement of the truck gear, andV means for shifting the truck in one direction toV engage the lo against the saw and for shifting the truclg in an opposite direction to bring the truck gear into engagement with one of the reversing gears whereby t0 movethe carriage of the truck to feed the log, said truck moving means being operable to shift the reversing gears to cause movement of the carriage in either direction.

In testimony whereof- I aflix my signature in presence of two witnesses. v

` VARREN SABIN.

Witnesses: y

JALMER JAcoBsoN, CHRIS MoN son.

Copies of this patent may be obtained for five cents each, bvaddrevssing the Commissioner of Patents,

Washington, D. C. 

